AI/ML Full Stack Engineer

Title: Senior AI/ML Full Stack EngineerTarget Location: Ireland (Hybrid - Cork, Limerick or Dublin)Role Type: Permanent - Excellent Salary + Benefits - HybridExpertise Level: Senior (5+ Years Software Engineering | 2+ Years Production AI & LLM Systems)Candidate Profile Summary A Senior Software Engineer specializing in transitioning prototype AI concepts-including LLMs, multi-agent frameworks, RAG architectures, and Text-to-SQL interfaces-into secure, scalable, and cost-efficient production applications. Experience covers the complete software lifecycle: high-throughput data ingestion, vector retrieval optimization, agentic orchestration, API design, responsive frontend interfaces, CI/CD automation, and full-stack LLMOps observability.Primary Expertise & Deliverables Production AI Engineering & Agentic WorkflowsPOC-to-Production Conversion: Experienced in taking research-grade AI prototypes and engineering them into enterprise-ready microservices with strict SLAs, automated fallback paths, and on-call resilience.Agent Orchestration: Architecting multi-step autonomous workflows using function calling, tool execution graphs, dynamic retries, timeouts, and circuit-breaker patterns.Advanced RAG Pipelines: Designing end-to-end retrieval frameworks-including adaptive document chunking, metadata filtering, hybrid search index strategies, cross-encoder re-ranking, and grounded generation.Performance & Cost Optimization: Implementing semantic caching, response caching, token usage budgets, and model routing to lower query latency and operational overhead.Full-Stack & API ArchitectureAsynchronous Backends: Building typed FastAPI applications with OpenAPI specifications, Pydantic DTOs, async I/O, rate limiting, connection pooling, and idempotent background processing.Modern Streaming Frontends: Developing React and Next.js interfaces optimized for streaming LLM responses, multi-step agent status tracking, complex state management, and continuous user workflows.Relational & Vector Data: Extensive work with PostgreSQL, pgvector, standalone vector databases, and SQL query tuning.LLMOps, Reliability & SecurityEvaluation & Testing: Building continuous evaluation gates (CI eval gates, custom golden datasets, automated regression suites, trace replays) to prevent quality degradation prior to release.Full-Stack Observability: Instrumenting applications with OpenTelemetry to track token burn rates, cache hit ratios, end-to-end latency traces, and custom SLO/SLI metrics.AI Security & Governance: Applying defense-in-depth strategies against prompt injection, data leakage, and unauthorized tool invocation, while maintaining RBAC/ABAC and audit readiness.DevOps & Infrastructure: Containerizing workloads via Docker and Kubernetes, managing cloud infrastructure (AWS/Azure/GCP) using Terraform, and building automated GitHub Actions pipelines.Core Technical MatrixDomainKey Technologies & FrameworksAI / LLM FrameworksRAG, Agentic Tool Chains, Multi-Agent Orchestration (LangGraph / CrewAI / AutoGen), Text-to-SQL, Structured Generation (Pydantic / JSON Schema)Retrieval & Vector SearchHybrid Search (Dense + BM25), Cross-Encoders, Semantic Caching, Re-ranking, pgvector, Milvus, WeaviateBackend & DatabasesPython 3.10+, FastAPI (Async), PostgreSQL, Task Queues (Celery / RQ / Arq), SSE, WebSockets, REST / OpenAPIFrontend & UIReact, Next.js, TypeScript, React Query, Zustand, Optimistic UI Updates, Streaming UI ComponentsDevOps & CloudKubernetes, Docker, Terraform (IaC), GitHub Actions, Cloud Storage (S3 / GCS / Azure Blob), AWS / GCP / AzureLLMOps & ObservabilityOpenTelemetry, Prometheus, Grafana, CloudWatch, Evaluation Frameworks (RAGAS / TruLens), Golden Set TestingSecurity & CompliancePrompt Injection Defense, DLP, Secrets Management (Vault / Cloud KMS), RBAC/ABAC, SOC2/ISO AlignmentExperience & Track Record5+ years in full-stack web software engineering, backend service architecture, and cloud operations.2+ years dedicated to shipping LLM-driven applications, RAG pipelines, and autonomous agent workflows to live production users.Proven history establishing testing strategies (unit, integration, contract, load testing), prompt versioning, canary deployment flows, and incident response playbooks.Berkley Business & Technology is a specialist consultancy, recruiting professionals for organizations throughout Ireland, UK & Europe; for more information go to www.berkley-group.com. If you would like to discuss this vacancy further or to discuss your career options in confidence, please send your profile to brendanoconnell@berkley-group.com